Protégé 4.1

Installing and Running Protégé 4.1

Description Protégé is an environment for creating and editing ontologies and knowledge bases. In KBS (Knowledge Based Systems) we were supposed to use version: Protégé 4.1. After installing it I kept getting the same error message (also included picture in attachment): <code> C:\Program Files\Protege_4.1>java -Dlog4j.configuration=file:log4j.xml -DentityExpansionLimit=100000000 -Dfile.encoding=utf-8 -Dorg.protege.plugin.dir=plugins -classpath bin/felix.jar;bin/ProtegeLauncher.jar org.protege.osgi.framework.Launcher Core Bundle 1 failed to start. Exception in thread "main" org.osgi.framework.BundleException: Unresolved constraint in bundle org.protege.common [1]: package; (&(package=javax.swing.text)(version>=0.0.0)) at org.apache.felix.framework.Felix.resolveBundle(Felix.java:3295) at org.apache.felix.framework.Felix.startBundle(Felix.java:1653) at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:905) at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:892) at org.protege.osgi.framework.Launcher.startBundles(Launcher.java:111) at org.protege.osgi.framework.Launcher.start(Launcher.java:80) at org.protege.osgi.framework.Launcher.main(Launcher.java:143) </code> Why does this error occur? How can I make Protégé 4.1 run?
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